Phonograph record-cylinder of celluloid.



Patented mi. 29, |901'. A. u. PETIT. f PHONOGRAPH BECURD GYLINDER 0F CELLULOID.

(Appucaeion' 6161i Apr. 1e, 1900.)

(II-0 Model.)

www Q7 UNTTED STATES @PATENT GFFTC.

ADEMOR N. PETIT, OF NEWARK, NEW JERSEY.

PHONOGRAPH RECORD-CYLINDER OF CELLULOID.

SPECIFICATION forming' part of Letters Patent No. 666,937, dated January 29, 1901.

, Application filed April 19, 1900.

To cir/ZZ wtOWt it may coraz/cern:

Be it known that I, ADEMOR NAPOLEON PETIT, a citizen of the United States, resid-V ing at Newark, in the county of EsseX and State of New Jersey, have invented a new and useful Improvement in Phonograph Sound- Record Cylinders of Celluloid, of which the following is a specification.

My present invention is designed as an improvement upon the device shown and described in Letters Patent No. 657,956, granted to me September 18, 1900. In the device of this patent the ends of the celluloid cylinder were integral and bent inward and provided with openings of varying sizes to fit the taper mandrel of the phonograph or reproducing-machine. In this device there was liability of the cylinder springing'in cutting the record or of the same getting slightly out of shape in the preparatory treatment or after drying. Y

My present invention is a new article of manufacture; and it consists of a celluloid cylinder or sound-record for phonographs or similar machines adapted to fit the mandrel of the machine and formed from a tube of celluloid, with one end reduced from the di, ameter of the tube and with the other end provided with an inserted ring and said ring held in place and supported by the cylinder. These celluloid cylinders are comparatively thin, and between the same and the mandrel of the phonograph or record-reproducing machine there is an appreciable space. In making these celluloid cylinders a tube of celluloid of the desired thickness and size-.is out up into sections and one end is prepared to fit the larger diameter of the taper mandrel. This is preferably done by returning the end inward, or, in other words, by forming an integral inturned end withan opening of the desired diameter. This may also be done by iitting therein a ring cut from a flat sheet, the periphery of the ring and the inner surface of the cylinder being connected by a solvent of celluloid. The other end is provided with an inserted ring cut from a flat sheet and secured in like manner; but before this ring is inserted the surface of the celluloid is to be treated to render the same plastic to permit the record to be cut thereon. I prefer to employ a sleeve of metal or other Serial No. 13,425. No model.)

suitablematerial having a tapered opening fitting the taper mandrel and which sleeve is made true and cylindrical on the exterior surface and adapted to snugly t within the celluloid cylinder to cause the same to assume a perfectly-cylindrical form and to act as a support therefor during the record-reproducing operation and during the previous treatment and after drying of the cylinder, after which the sleeve is to be removed. The ring to be inserted in the end of the cylinder has the title of the record printed upon one face, and after the removal of the sleeve the ring is inserted and secured to complete the finishing of the record.

In the drawings, Figure l is anelevation and partial section representing myimproved celluloid cylinder complete upon thetaper mandrel of a phonograph or record-reproducing machine. Fig. 2 is an end view of the celluloid cylinder'. Fig. 3 is an elevation and partial section representing amodication Fig. 4: is a partial longitudinal section at one end of the celluloid cylinder, showing a modification; and Fig. 5 is an elevation and partial section representing the filling-in sleeve of metal or other material with the adjacent parts.

The axis or shaft a and the taper mandrel b of the phonograph or record-reproducing machine are of ordinary construction.

c represents the celluloid cylinder. This may be of any desired thickness, but is usually comparatively thin when compared with the ordinary wax cylinders or records in common use. The celluloid cylinder is of usual diameter, and because of being somewhat thin there is an appreciable space within the same and between the inner surface and the taper mandrel, and to support the said cylinder from the sleeve it is necessary that the ends be provided with openings to receive and frictionally engage the surface of the taper mandrel. I prefer to make the advancing end of the cylinder c-that is to say, the end having the larger opening-to t over the greater diameter of the taper mandrel, with an integral inturned end 2, formed by bending in the celluloid of the cylinder when in a soft condition. These celluloid cylinders are preferably formed by cutting up a tube into sections of the desired length. The advancing IOO end of the cylinder may, however, be made with an inserted ring 3, the periphery of which is connected to the inner surface of the celluloid cylinder by a solvent material. The opposite end of the celluloid cylinder is supported upon the taper mandrel at the end of smallest diameter by an inserted ring 4, the periphery of which is preferably connected to the inner surface of the celluloid cylinder by a solvent material, which acting upon the adjacent surfaces of the celluloid causes the parts to so intimately adhere as to be practically inseparable after the parts have dried. Upon the surface of this inserted ring 4 l prefer to place the title of the record, as illustrated in Fig. 2. The-outer surface of this ring and the end of the celluloid cylinder are made even and fiush to produce a finished appearance. This inserted ring may, if desired, be formed with a flange 5, as shown in Fig. 4, as thereby a greater contacting surface is provided between the periphery of the ring and the inner surface of the celluloid cylinder without departing from the title function of the ring. y

In Fig. 5 I have illustrated at d a sleeve of metal orother material having a tapered opening adapted to fit snugly upon the taper mandrel b and having a true cylindrical out-er surface adapted to fit snugly within the celluloid cylinder c. This sleeve is preferably employed in the method of making the phonograph-cylinders, the same acting as a support to the celluloid cylinder and being preferably inserted before the surface is treated to render the same plastic in order that the style of the reproducing-machine may properly cut into the surface of the celluloid. The sleeve also acts a support during the record making or cutting operation and thereafter until the celluloid cylinder has dried sufficient to insure the same maintaining its shape, and l prefer to employ this sleeve d before the inserted title-ring 4 is put in place in the end of the cylinder in order to complete the record.

The celluloid cylinder c is formed by cutting a tube into sections of the desired length by either forming an inturned end 2 or connecting an inserted ring 3 in the end surrounding the largest diameter of the taper mandrel. The sleeve d is then inserted in the celluloid cylinder c, the surface is treated to render the same plastic, and the sleeve, with the celluloid cylinder,placed upon the taper mandrel in a reproducing-machine. The record is then cut in this machine upon the surface of the cylinder, after which and when a suitable time has velapsed to insure the cylinder maintaining its perfect form the sleeve d is removed, and the inserted title-ring 4, either with or without the flange 5, is placed within the open end of the celluloid cylinder and secured thereto to complete the record, after which the record is adapted to be placed upon the taper mandrel of the phonograph.

I claim as my inventionl. As a new article of manufacture, a celluloid cylinder or sound-'record for phonographs or similar machines adapted to fit the mandrel of the machine and formed from a tube of celluloid with one end reduced from the diameter of the tube and with the other end provided with an inserted ring and said ring held in place and supported by the cyl-lr index', substantially as specified.

2. As a new article of manufacture, a celluloid cylinder or sound-record for phonographs or similar machines, adapted to fit the mandrel of the machine and formed from an approximately thin tube of celluloid with one end integrally bent inward to contract the opening and with the other end provided with an inserted ring and said ring held in place and supported entirely by the cylinder, substantially as specified.

Signed be me this 10th day of April, 1900.4

ADEMOR N. PETIT.

Witnesses:

GEO. T. PINCKNEY, S. T. I-IAVILAND. 

